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Description

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

PUBLISHED Reserved 2026-05-19 | Published 2026-05-28 | Updated 2026-05-29 | Assigner canonical




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-416 Use After Free

Product status

Default status
unaffected

6.8.0 (dpkg) before 6.8.0-124.124
affected

Credits

Tristan Madani (@TristanInSec), Talence Security finder

References

git.launchpad.net/...e5cd4759b63363373faf1ce15d1cab3606d6ec8 patch

cve.org (CVE-2026-47331)

nvd.nist.gov (CVE-2026-47331)

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